What is a Tabata Timer?

A Tabata timer is an interval timer built for Tabata training, a form of high-intensity interval training (HIIT) developed by Japanese scientist Dr. Izumi Tabata and his team at the National Institute of Fitness and Sports in Tokyo. It alternates short bursts of all-out effort with brief rests so you can train hard without watching the clock.

The classic Tabata protocol

The original protocol is famously simple and brutally effective:

•20 seconds of maximum-intensity work
•10 seconds of rest
•Repeated for 8 rounds — just 4 minutes in total

The goal is intensity: push as hard as you safely can during every work interval, then recover briefly before the next round.

How to use this timer

1Tap the gear icon to set your active duration, break duration, and rounds. The defaults are the classic 20 / 10 × 8.
2Press Start. A short “Get Ready” countdown leads into your first work round.
3Listen for the audio cues that signal the start of each work and rest interval, plus a final sound when you finish.
4Use Pause and Reset anytime. Your settings are saved in your browser for next time.

Frequently asked questions

Is Tabata the same as HIIT?: Tabata is a specific, highly structured form of high-intensity interval training (HIIT). All Tabata is HIIT, but not all HIIT follows the strict 20-seconds-on, 10-seconds-off, eight-round format.
How long is a Tabata workout?: The classic protocol is just 4 minutes — 20 seconds of work and 10 seconds of rest repeated for 8 rounds. With this timer you can adjust the durations and rounds to build longer or shorter sessions.
Can I use it for other interval workouts?: Yes. Change the active duration, break duration, and number of rounds to set up circuit training, boxing rounds, EMOM workouts, stretching intervals, or even focused study sprints.
Do I need any equipment?: No. Tabata is traditionally done with bodyweight exercises like squats, burpees, mountain climbers, or sprints. Just press start and go.